System and method for testing storage stability of normal-temperature easily-decomposed gas extinguishing agent

By building a test system including peristaltic pump, high-pressure reactor, constant temperature and humidity chamber and gas chromatography mass spectrometer, the problem of the inability of the existing technology to simulate the high pressure and temperature alternation of the fire extinguishing agent is solved, and the accuracy and safety of the fire extinguishing agent are achieved is achieved, and the accuracy and safety of the test are improved.

CN120522339APending Publication Date: 2025-08-22CIVIL AVIATION UNIV OF CHINA
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Patent Information

Application Number
CN202510891745.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2025-08-22

AI Technical Summary

Technical Problem

The existing gas fire extinguishing agent stability testing methods cannot truly simulate the high-pressure and severe temperature alternating environment of the fire extinguishing agent in high-pressure cylinders, resulting in the inability to accurately evaluate its chemical stability and safety in practical applications.

Method used

The peristaltic pump, high-pressure reactor, constant temperature and humidity chamber, fire extinguishing agent recovery device, gas chromatography mass spectrometer and data processing system are used to build a storage stability test system for easy decomposition of gas fire extinguishing agent at room temperature. The storage status of fire extinguishing agent is simulated through the high-pressure and high-low temperature alternating environment, and the decomposition rate is measured using gas chromatography mass spectrometer.

Benefits of technology

It realizes the high-fidelity simulation of the temperature alternation of the fire extinguishing agent in the high-pressure storage state in the laboratory, accurately evaluates the decomposition rate and purity of the fire extinguishing agent, reduces errors, and improves the accuracy and safety of the test.

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Abstract

The invention relates to the technical field of fire extinguishing agent performance testing, in particular to a system and method for testing the storage stability of a normal-temperature easily-decomposed gaseous fire extinguishing agent, and the system comprises a peristaltic pump, a high-pressure reaction kettle, a constant-temperature and constant-humidity chamber, a fire extinguishing agent recovery device, a gas chromatograph-mass spectrometer and a data processing system; the peristaltic pump is used for pumping out a gas-phase or liquid-phase fire extinguishing agent from the steel cylinder and injecting the gas-phase or liquid-phase fire extinguishing agent into the high-pressure reaction kettle; adjusting the internal pressure of the high-pressure reaction kettle to a preset high-pressure value, and placing the high-pressure reaction kettle in a constant-temperature and constant-humidity box; the constant-temperature and constant-humidity chamber is used for adjusting the environment temperature and providing a high-low temperature alternating experiment environment condition; the fire extinguishing agent recovery device is used for collecting the residual fire extinguishing agent after the experiment is finished; the gas chromatograph-mass spectrometer is used for measuring a chromatogram of the residual fire extinguishing agent; the data processing system is used for calculating the decomposition rate of the fire extinguishing agent according to the chromatogram. According to the invention, the storage stability of the gas extinguishing agent can be tested in a high-pressure and high-low temperature alternating environment.
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